Jan was born about 1781.
"Deutschland, ausgewählte evangelische Kirchenbücher 1500-1971," database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QPFJ-1SS6 : 22 March 2023), John, 1 Sep 1811; images digitized and records extracted by Ancestry; citing Baptism, Messel, Messel, Messel, Darmstadt, Hessen, Deutschland, , German Lutheran Collection, various parishes, Germany.
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